Sly Number 1
Significant Hazard ConditionEmergency Action Plan: Not Required
Location
| State | South Dakota |
| County | Charles Mix |
| Nearest City | NONE IN FLOOD PLAIN |
| River/Stream | PLATTE CREEK-TR |
| Coordinates | 43.46134, -98.80347 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 280 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 18 acre-ft |
| Max Storage | 18 acre-ft |
| Normal Storage | 8 acre-ft |
| Max Discharge | 900 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | JOHN R CATTLE CO INC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |